The Mystery of R.H.
Clue 1; The two digits are even, but add up to three.
Clue 2; When this number is multiplied by 15, it yields a product greater than 150 but less than 200.
Clue 3: The two digits are in least to greatest order.

The Mystery of RS
Clue 1: It has only 2 proper factors.Clue 2: My number is greater than 23 and less than 40.
Clue 3: Ha! There is no Clue 3.
Who am I?

The Mystery of SG
Clue 1: I am a square number
.Clue 2: The sum of my digits is 18.
Clue 3: I am higher than 530 but less than 600.
Who am I?

The Mystery of BLClue 1: I am a perfect number.
Clue 2: I don't have 3 as a factor.
Clue 3: I am less than 100.
Who am I?

The Mystery of EW
Clue 1: I am not a square number.
Clue 2: I am between 7 and 100.
Clue 3: I am a perfect number.
Who am I?

The Mystery of SL #1
Clue 1: I am a prime number.
Clue 2: I am between 1 and 20.
Clue 3: My sum of my digits is 4.
Who am I?

The Mystery of SL #2
Clue 1: I am a cube number.
Clue 2: My cube root is between 5 and 21.
Clue 3: My sum of my digits is exactly 10.
Who am I?